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This is the most basic and most widely used type of tapered roller bearing. It consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). It is typically mounted in opposing pairs on a shaft.
Unit of Measure

Key Dimensions

Cup Part Number

 N/A 138172

O.D. (D)

 N/A 17.2450 in438.023 mm

Outer Ring Width (C)

 N/A 1.8750 in47.625 mm
e Factor 1 N/A 0.46
K Factor 2 N/A 1.27
Y Factor 3 N/A 1.31

Other Dimensions

Weight

 N/A 44.3 Kg97.7 lb
Max Housing Fillet Radius4 N/A 0.130 in3.30 mm

Housing Backing Shoulder Dia. - Backface (Db)

 N/A 16.22 in412.00 mm

Factors

G1 Factor

 N/A 1970

G2 Factor

 N/A 290
  • 1 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 2 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 3 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 4 These maximum fillet radii will be cleared by the bearing corners.